Wilderness Trekking · ǁKaras RegionFish River Canyon trekkingEXPERTRisk: HIGHNAD Permit + logistics ~1,5…The second-largest canyon system on Earth after the Grand Canyon — a multi-day, unsupported trek down into and along the canyon floor, carrying all food and water, with no cell signal, no exit points, and no rescue closer than a multi-hour drive for the entire route.View details